root / hw / petalogix_ml605_mmu.c @ 9bfa659e
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1 | 00914b7d | Michal Simek | /*
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2 | 00914b7d | Michal Simek | * Model of Petalogix linux reference design targeting Xilinx Spartan ml605
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3 | 00914b7d | Michal Simek | * board.
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4 | 00914b7d | Michal Simek | *
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5 | 00914b7d | Michal Simek | * Copyright (c) 2011 Michal Simek <monstr@monstr.eu>
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6 | 00914b7d | Michal Simek | * Copyright (c) 2011 PetaLogix
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7 | 00914b7d | Michal Simek | * Copyright (c) 2009 Edgar E. Iglesias.
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8 | 00914b7d | Michal Simek | *
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9 | 00914b7d | Michal Simek | * Permission is hereby granted, free of charge, to any person obtaining a copy
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10 | 00914b7d | Michal Simek | * of this software and associated documentation files (the "Software"), to deal
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11 | 00914b7d | Michal Simek | * in the Software without restriction, including without limitation the rights
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12 | 00914b7d | Michal Simek | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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13 | 00914b7d | Michal Simek | * copies of the Software, and to permit persons to whom the Software is
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14 | 00914b7d | Michal Simek | * furnished to do so, subject to the following conditions:
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15 | 00914b7d | Michal Simek | *
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16 | 00914b7d | Michal Simek | * The above copyright notice and this permission notice shall be included in
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17 | 00914b7d | Michal Simek | * all copies or substantial portions of the Software.
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18 | 00914b7d | Michal Simek | *
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19 | 00914b7d | Michal Simek | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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20 | 00914b7d | Michal Simek | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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21 | 00914b7d | Michal Simek | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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22 | 00914b7d | Michal Simek | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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23 | 00914b7d | Michal Simek | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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24 | 00914b7d | Michal Simek | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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25 | 00914b7d | Michal Simek | * THE SOFTWARE.
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26 | 00914b7d | Michal Simek | */
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27 | 00914b7d | Michal Simek | |
28 | 00914b7d | Michal Simek | #include "sysbus.h" |
29 | 00914b7d | Michal Simek | #include "hw.h" |
30 | 00914b7d | Michal Simek | #include "net.h" |
31 | 00914b7d | Michal Simek | #include "flash.h" |
32 | 00914b7d | Michal Simek | #include "sysemu.h" |
33 | 00914b7d | Michal Simek | #include "devices.h" |
34 | 00914b7d | Michal Simek | #include "boards.h" |
35 | 00914b7d | Michal Simek | #include "xilinx.h" |
36 | 00914b7d | Michal Simek | #include "blockdev.h" |
37 | 00914b7d | Michal Simek | #include "pc.h" |
38 | 39186d8a | Richard Henderson | #include "exec-memory.h" |
39 | 00914b7d | Michal Simek | |
40 | d94e7434 | Peter A. G. Crosthwaite | #include "microblaze_boot.h" |
41 | b861b741 | Peter A. G. Crosthwaite | #include "microblaze_pic_cpu.h" |
42 | 00914b7d | Michal Simek | #include "xilinx_axidma.h" |
43 | 00914b7d | Michal Simek | |
44 | 00914b7d | Michal Simek | #define LMB_BRAM_SIZE (128 * 1024) |
45 | 00914b7d | Michal Simek | #define FLASH_SIZE (32 * 1024 * 1024) |
46 | 00914b7d | Michal Simek | |
47 | d94e7434 | Peter A. G. Crosthwaite | #define BINARY_DEVICE_TREE_FILE "petalogix-ml605.dtb" |
48 | 00914b7d | Michal Simek | |
49 | d94e7434 | Peter A. G. Crosthwaite | #define MEMORY_BASEADDR 0x50000000 |
50 | d94e7434 | Peter A. G. Crosthwaite | #define FLASH_BASEADDR 0x86000000 |
51 | d94e7434 | Peter A. G. Crosthwaite | #define INTC_BASEADDR 0x81800000 |
52 | d94e7434 | Peter A. G. Crosthwaite | #define TIMER_BASEADDR 0x83c00000 |
53 | d94e7434 | Peter A. G. Crosthwaite | #define UART16550_BASEADDR 0x83e00000 |
54 | d94e7434 | Peter A. G. Crosthwaite | #define AXIENET_BASEADDR 0x82780000 |
55 | d94e7434 | Peter A. G. Crosthwaite | #define AXIDMA_BASEADDR 0x84600000 |
56 | 00914b7d | Michal Simek | |
57 | bf494367 | Andreas Färber | static void machine_cpu_reset(MicroBlazeCPU *cpu) |
58 | d94e7434 | Peter A. G. Crosthwaite | { |
59 | bf494367 | Andreas Färber | CPUMBState *env = &cpu->env; |
60 | bf494367 | Andreas Färber | |
61 | 00914b7d | Michal Simek | env->pvr.regs[10] = 0x0e000000; /* virtex 6 */ |
62 | 00914b7d | Michal Simek | /* setup pvr to match kernel setting */
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63 | 00914b7d | Michal Simek | env->pvr.regs[5] |= PVR5_DCACHE_WRITEBACK_MASK;
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64 | 00914b7d | Michal Simek | env->pvr.regs[0] |= PVR0_USE_FPU_MASK | PVR0_ENDI;
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65 | 00914b7d | Michal Simek | env->pvr.regs[0] = (env->pvr.regs[0] & ~PVR0_VERSION_MASK) | (0x14 << 8); |
66 | 00914b7d | Michal Simek | env->pvr.regs[2] ^= PVR2_USE_FPU2_MASK;
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67 | 00914b7d | Michal Simek | env->pvr.regs[4] = 0xc56b8000; |
68 | 00914b7d | Michal Simek | env->pvr.regs[5] = 0xc56be000; |
69 | 00914b7d | Michal Simek | } |
70 | 00914b7d | Michal Simek | |
71 | 00914b7d | Michal Simek | static void |
72 | 00914b7d | Michal Simek | petalogix_ml605_init(ram_addr_t ram_size, |
73 | 00914b7d | Michal Simek | const char *boot_device, |
74 | 00914b7d | Michal Simek | const char *kernel_filename, |
75 | 00914b7d | Michal Simek | const char *kernel_cmdline, |
76 | 00914b7d | Michal Simek | const char *initrd_filename, const char *cpu_model) |
77 | 00914b7d | Michal Simek | { |
78 | 39186d8a | Richard Henderson | MemoryRegion *address_space_mem = get_system_memory(); |
79 | 00914b7d | Michal Simek | DeviceState *dev; |
80 | a9480e5d | Andreas Färber | MicroBlazeCPU *cpu; |
81 | ee118507 | Andreas Färber | CPUMBState *env; |
82 | 00914b7d | Michal Simek | DriveInfo *dinfo; |
83 | 00914b7d | Michal Simek | int i;
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84 | 00914b7d | Michal Simek | target_phys_addr_t ddr_base = MEMORY_BASEADDR; |
85 | d7973c77 | Avi Kivity | MemoryRegion *phys_lmb_bram = g_new(MemoryRegion, 1);
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86 | d7973c77 | Avi Kivity | MemoryRegion *phys_ram = g_new(MemoryRegion, 1);
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87 | 00914b7d | Michal Simek | qemu_irq irq[32], *cpu_irq;
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88 | 00914b7d | Michal Simek | |
89 | 00914b7d | Michal Simek | /* init CPUs */
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90 | 00914b7d | Michal Simek | if (cpu_model == NULL) { |
91 | 00914b7d | Michal Simek | cpu_model = "microblaze";
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92 | 00914b7d | Michal Simek | } |
93 | a9480e5d | Andreas Färber | cpu = cpu_mb_init(cpu_model); |
94 | a9480e5d | Andreas Färber | env = &cpu->env; |
95 | 00914b7d | Michal Simek | |
96 | 00914b7d | Michal Simek | /* Attach emulated BRAM through the LMB. */
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97 | c5705a77 | Avi Kivity | memory_region_init_ram(phys_lmb_bram, "petalogix_ml605.lmb_bram",
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98 | d7973c77 | Avi Kivity | LMB_BRAM_SIZE); |
99 | c5705a77 | Avi Kivity | vmstate_register_ram_global(phys_lmb_bram); |
100 | d7973c77 | Avi Kivity | memory_region_add_subregion(address_space_mem, 0x00000000, phys_lmb_bram);
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101 | 00914b7d | Michal Simek | |
102 | c5705a77 | Avi Kivity | memory_region_init_ram(phys_ram, "petalogix_ml605.ram", ram_size);
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103 | c5705a77 | Avi Kivity | vmstate_register_ram_global(phys_ram); |
104 | d7973c77 | Avi Kivity | memory_region_add_subregion(address_space_mem, ddr_base, phys_ram); |
105 | 00914b7d | Michal Simek | |
106 | 00914b7d | Michal Simek | dinfo = drive_get(IF_PFLASH, 0, 0); |
107 | 00914b7d | Michal Simek | /* 5th parameter 2 means bank-width
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108 | 00914b7d | Michal Simek | * 10th paremeter 0 means little-endian */
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109 | cfe5f011 | Avi Kivity | pflash_cfi01_register(FLASH_BASEADDR, |
110 | cfe5f011 | Avi Kivity | NULL, "petalogix_ml605.flash", FLASH_SIZE, |
111 | 00914b7d | Michal Simek | dinfo ? dinfo->bdrv : NULL, (64 * 1024), |
112 | 00914b7d | Michal Simek | FLASH_SIZE >> 16,
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113 | 01e0451a | Anthony Liguori | 2, 0x89, 0x18, 0x0000, 0x0, 0); |
114 | 00914b7d | Michal Simek | |
115 | 00914b7d | Michal Simek | |
116 | 00914b7d | Michal Simek | cpu_irq = microblaze_pic_init_cpu(env); |
117 | 00914b7d | Michal Simek | dev = xilinx_intc_create(INTC_BASEADDR, cpu_irq[0], 4); |
118 | 00914b7d | Michal Simek | for (i = 0; i < 32; i++) { |
119 | 00914b7d | Michal Simek | irq[i] = qdev_get_gpio_in(dev, i); |
120 | 00914b7d | Michal Simek | } |
121 | 00914b7d | Michal Simek | |
122 | 39186d8a | Richard Henderson | serial_mm_init(address_space_mem, UART16550_BASEADDR + 0x1000, 2, |
123 | 39186d8a | Richard Henderson | irq[5], 115200, serial_hds[0], DEVICE_LITTLE_ENDIAN); |
124 | 00914b7d | Michal Simek | |
125 | 00914b7d | Michal Simek | /* 2 timers at irq 2 @ 100 Mhz. */
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126 | abe098e4 | Peter A. G. Crosthwaite | xilinx_timer_create(TIMER_BASEADDR, irq[2], 0, 100 * 1000000); |
127 | 00914b7d | Michal Simek | |
128 | 00914b7d | Michal Simek | /* axi ethernet and dma initialization. TODO: Dynamically connect them. */
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129 | 00914b7d | Michal Simek | { |
130 | 00914b7d | Michal Simek | static struct XilinxDMAConnection dmach; |
131 | 00914b7d | Michal Simek | |
132 | 00914b7d | Michal Simek | xilinx_axiethernet_create(&dmach, &nd_table[0], 0x82780000, |
133 | 00914b7d | Michal Simek | irq[3], 0x1000, 0x1000); |
134 | 00914b7d | Michal Simek | xilinx_axiethernetdma_create(&dmach, 0x84600000,
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135 | 00914b7d | Michal Simek | irq[1], irq[0], 100 * 1000000); |
136 | 00914b7d | Michal Simek | } |
137 | 00914b7d | Michal Simek | |
138 | bf494367 | Andreas Färber | microblaze_load_kernel(cpu, ddr_base, ram_size, BINARY_DEVICE_TREE_FILE, |
139 | d94e7434 | Peter A. G. Crosthwaite | machine_cpu_reset); |
140 | 00914b7d | Michal Simek | |
141 | 00914b7d | Michal Simek | } |
142 | 00914b7d | Michal Simek | |
143 | 00914b7d | Michal Simek | static QEMUMachine petalogix_ml605_machine = {
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144 | 00914b7d | Michal Simek | .name = "petalogix-ml605",
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145 | 00914b7d | Michal Simek | .desc = "PetaLogix linux refdesign for xilinx ml605 little endian",
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146 | 00914b7d | Michal Simek | .init = petalogix_ml605_init, |
147 | 00914b7d | Michal Simek | .is_default = 0
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148 | 00914b7d | Michal Simek | }; |
149 | 00914b7d | Michal Simek | |
150 | 00914b7d | Michal Simek | static void petalogix_ml605_machine_init(void) |
151 | 00914b7d | Michal Simek | { |
152 | 00914b7d | Michal Simek | qemu_register_machine(&petalogix_ml605_machine); |
153 | 00914b7d | Michal Simek | } |
154 | 00914b7d | Michal Simek | |
155 | 00914b7d | Michal Simek | machine_init(petalogix_ml605_machine_init); |